feat: Phase 2 multi-vertical expansion — Spa appointments, Retail POS, Cafe loyalty
Spa/Beauty (booking-service) — Therapist + Appointment scheduling:
- Therapist aggregate: specialties (text[]), workingHours (jsonb), CRUD
- Appointment: notes field, Pending initial status, MarkNoShow() behavior
- TherapistsController (4 endpoints), 9 FluentValidation validators
- EF config: PostgreSQL native text[] + jsonb column types
Retail POS (catalog + inventory + order) — Barcode, stock, returns:
- Product: barcode/SKU fields, GetProductByBarcodeQuery (lookup endpoint)
- Inventory: bulk stock check, low stock alert threshold (SetReorderLevel)
- Order: return/exchange flow with ProcessReturn(), Returned status (id=8)
- CreateReturnCommand, CreateExchangeCommand (same UnitOfWork)
- 2 domain events: OrderReturnedDomainEvent, OrderExchangedDomainEvent
- 6 new API endpoints across 3 services
Cafe (membership + fnb-engine) — Loyalty stamps + barista queue:
- StampCard aggregate: AddStamp(), ClaimReward(), Reset(), 4 domain events
- Auto-create card on first stamp (friction-free UX)
- StampCardsController (6 endpoints), 4 commands, 2 queries
- BaristaQueueItem: 5-status workflow (Queued→Preparing→Ready→Delivered)
- BaristaController (6 endpoints), 5 commands, 2 queries
- Tenant isolation (shop-level) on both features
ROADMAP: Phase 1 closed out, Phase 2 vertical tasks IN-PROGRESS
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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